Cyclocoelum mehrotrai, Sinha & Sahay, 1975

Dronen, Norman O. & Blend, Charles K., 2015, Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007, Zootaxa 4053 (1), pp. 1-100 : 15

C. mehrotrai Sinha & Sahay, 1975

Syn. C. mathuri Jain, 1984

Type host. Common greenshank, Tringa nebularia (Gunnerus) (Syn. Glottis nebularia Gunnerus ) ( Charadriiformes : Scolopacidae ).

Type locality. Patna, Bihar, India.

Additional host. Common sandpiper, Actitis hypoleucos (Linnaeus) (Syn. Tringa hypoleucos Linnaeus ) ( Charadriiformes : Scolopacidae )— Jain (1984).

Additional locality. Agra, Uttar Pradesh, India—Jain (1984).

Remarks. Cyclocoelum mathuri Jain, 1984 was originally described from two specimens from Actitis hypoleucos collected in the Agra District of India; however, C. mathuri cannot be distinguished from Cyclocoelum mehrotrai Sinha & Sahay, 1975 and is synonymized herein with the latter. Cyclocoelum mehrotrai is larger than C. mathuri (38,000–38,200 compared to 21,800), and although C. mehrotrai has a somewhat smaller cirrus sac (600, 2% of body length compared to 700, 3%) and a shorter posttesticular space (542–767, 1–2% of body length compared to about 850, 4%), the similar percentages of these sizes relative to body length suggest that these differences are a product of growth (size). In addition to the similarities in the measurements, both species have a largely intercecal uterus, the posterior-most uterine loops do not invade the posttesticular space, both are from scolopacid birds from India, and both have a rudimentary oral sucker present—Sinha & Sahay (1975); Jain (1984).